This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X320, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC Airtac SU63-100 Standard Cylinder SU80X320 is a double-acting profile-type standard cylinder with a Ø80mm bore and 320mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X320, which matches its bore, stroke, force and mounting.
The AirTAC SU80X320 is a discontinued double-acting profile-type cylinder with an 80 mm bore and 320 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. The direct replacement is the SAU80X320, which matches the original bore, stroke, output force, port size and SC-series mounting footprint.
This SKU lacks a magnet and cannot accept a sensor. If you previously ordered an -S variant, note the SAU upgrade uses modern CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. The SAU line also introduces a SAUF valve-integrated option the SU never had.
| Model | Airtac SU63-100 Standard Cylinder SU80X320 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X320 |
| Bore size | Ø80 mm |
| Stroke | 320 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X320 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X320 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×320 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Pushes heavy pallets sideways off a high-speed line using the 2513 N thrust class, with the 320 mm stroke clearing the conveyor frame.
Ejects formed metal parts from a press bed, relying on the adjustable 28 mm air cushions to decelerate the 25 mm rod smoothly at stroke end.
To replace this SU80X320, order the SAU80X320. Confirm the 3/8" port, M20x1.5 rod thread, and PT/G/NPT thread preference. Because this is a non-magnet SKU, it cannot take a sensor; if sensing is needed, order the SAU -S version and use CMSG/DMSG/EMSG switches. If you need self-switching, explore the SAUF built-in valve variant. For load holding, note this cylinder drifts without live air; use an external rod lock or pilot-operated check valve. At 320 mm stroke, prevent rod bending by guiding the load externally. Neighbouring bores: a 63 mm gives 1559 N push, while a 100 mm gives 3927 N at 0.5 MPa.
Replacement checklist
Yes, the AirTAC SU80X320 is discontinued. The direct replacement is the SAU80X320. It provides the identical 80 mm bore, 320 mm stroke, 3/8" port, output force, and SC-series mounting compatibility, fitting directly into your existing application.
At 0.5 MPa it provides 2513 N push and 2268 N pull; at 0.7 MPa it pushes 3518 N, and the theoretical max is 513 kgf at 1.0 MPa. This specific SKU has no magnet and cannot accept a sensor. If you need sensing, the SAU replacement with the -S option uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X320 replacement — usually within 7-8 hours.